Locomotive-tender coal-pit.



E. G. BARTLETT.

LOCOMOTIVE TENDER COAL PIT. APPLlCATlON FILED SEPT-26,1917.

INVEATOR 0 Y WITNESSES 0 0 E fflarileii. v I 7 WW M Z v ,7

V ATTORNEYS omen STATES EMERY Gr. BARTLETT, or BOSTON, MASSACHUSETTS, :ASSIGNOR or ONE-HALF To I PHILIAS munnmn.

OF EAST. SOMEBVILLE, MASSACHUSETTS.

LOCOMOTIVE-TENIDER COAL-PIT.

To all whom it may concern:

Be it known that I, EMERY G. BARTLETT, a citizen of the United States, and a resident of Boston, in the county of Suffolk and State of Massachusetts, have invented a new and Improved Locomotive-Tender Coal-Pit, of whichthe following is a full, clear, and exact description.

This invention relates to locomotive tenders and deals more particularly with the construction of the coal pit, whereby the automatic feed of the coal by gravity is positively insured.

In the forms of tenders heretofore in common use the vibration of the tender causes the slack coal to settle into the lower rear portion of the coal pit, where it accumulates and becomes water-soaked and airslacked. The lumps of coal also become embedded in the slack and cannot be loosened and advanced except by entering the pit and shoveling it ahead.

The object of my invention is to produce a coal pit and shovel space so constructed that it will bring all the coal to the shoveling plate by force of gravity and vibration of the tender.

Special aims of the invention are to supply the coal to the fireman constantly, and keep the whole mass of coal in motion so that it will not pack down solid without the use of any mechanism, being an integral part of the tender, and with no more cost of upkeep after installed than the common coal-pit.

With such objects in View, and others which will appear as the description proceeds, the invention comprises various novel features of construction and arrangement of parts which will be set forth with particularity in the following description and claims appended hereto.

In the accompanying drawing, which illustrates one embodiment of the invention and wherein similar characters of reference indicate corresponding parts in all the views,

Figure 1 is a longitudinal sectional view on the line 1-1, Fig. 2, of the front end of a locomotive tender;

Fig. 2 is a plan view thereof; and

Fig. 3 is an endview looking from the locomotive.

Referring to the drawing, A designates a locomotive tender which is of any approved Specification of Letters Patent.

- design,

, Patented May 21, 1918.

Application filed September 26, 1917. Serial No. 193,357.

and in the front thereof is the coal pit a, which is formed with sloping walls 1 down which the coal flows by gravity to. a shovel space 2. This shovel space is formed by=a shovel or bottom plate 3 and overhanging walls 4 and 5. In other words, the bottom ofthe shovel space is much larger than the mouth 6 formed between the sloping walls 1 and the undercut walls t and 5. As the coal is taken from the shovel space or pocket 6' a new supply will iiow by gravity into it without danger of the coal sticking or packing up in the coal pit, which would necessitate the loosening of the coal in the usual manner. Across the coal pit is a solid or fixed front 7 which has its bottom edge cut away at 8 so that a shovel can be readily passed into the shovel space or pocket 6, and this front 7 is provided with openings 9 through which a punch bar may be inserted to break up the lumps that are too large to flow down into the shovel space,

and above the front 7 are doors 10 that swing open so as to start wet or otherwise non-flowing coal.

As the coal is taken from the coal space a fresh supply is fed forwardly by the inclined sides and back plate which direct the flow of coal to the shovel space 2 and the overhanging edges at 6 and the undercut plates 4 and 5 prevent the coal from packing in the shovel space and allow the shovel of the fireman to reach beyond the perpendicular fall of the coal from the edge 6, causing each new supply to be taken out so that packing is prevented. As the coal is all taken from the bottom and gravitates downwardly in a body each new tank load is on top of what is left in the pit, causing fresh coal to be advanced all the time. As the coal is used below the level of the doors they can be swung back and the coal helped down if there is any tendency of wet coal to stick, or if there are lumps they can be broken through the holes in the front plate 7 There is no change in the outward appearance of the tank from the regular locomotive tank, and very little change in the cost of construction, although there is a maximum space for water and coal.

From the foregoing description taken in connection with the accompanying drawing, the advantages of the construction and method of operation will be readily understood by those skilled in the art to which sider to be thwbest"embodiment*thereofj desire to have it understood that the structure shown is merely illustrative "and" that such changes may be made when desired as fall Within the scope of the appended" claims.

Having thus described my invention, I claim as new ands desire"to"secure= by- Letters Patent 2 y 1." A locomotive" tender coal-pit having incl-ined rear and side Walls" conyerging into "a --coal- 5 space #having: a dro'p'JWith undercut WallsL I 2. A=-10comotive tender coal 'pit havinga relatively narrow shovel space With an overhang and a drop at the sides and back.

as-toi1-1sure" theproper quantity for each shovelful, said shovel space being formed by a bottom shovel-"plate; and overhanging back a n-d side walls extending -upavardly froln the fshovek plate *and'j oining 'the lower edges -01? the back and side" plateswf the" coal-pit) I I uM'rmrwei- BARTLETT: I

Copiesofthis pa-tent mayebe'fobtaiired for fiiie'ce'nts eachyby audressin'gitIre.Commissiozir"of'I'atfits; WashingtonflJHL v I r I 

